Flexible fuel generator



FIG. 1 is a front elevation view of a flexible fuel generator showing our new design;

FIG. 2 is a back elevation view thereof;

FIG. 3 is a left side elevation view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a front, top, and left side perspective view thereof; and,

FIG. 8 is a back, top, and left side perspective view thereof.

The broken lines shown illustrate the portions of the claim that form no part of the claimed design. 

CLAIM The ornamental design for a flexible fuel generator, as shown and described. 